421355010154 has 16 divisors (see below), whose sum is σ = 682600703400. Its totient is φ = 193914313920.

The previous prime is 421355010149. The next prime is 421355010187. The reversal of 421355010154 is 451010553124.

It can be written as a sum of positive squares in 4 ways, for example, as 284540096929 + 136814913225 = 533423^2 + 369885^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23208637 + ... + 23226784.

Almost surely, 2^421355010154 is an apocalyptic number.

421355010154 is a deficient number, since it is larger than the sum of its proper divisors (261245693246).

421355010154 is a wasteful number, since it uses less digits than its factorization.

421355010154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46435785.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 421355010154 its reverse (451010553124), we get a palindrome (872365563278).

The spelling of 421355010154 in words is "four hundred twenty-one billion, three hundred fifty-five million, ten thousand, one hundred fifty-four".